WhatsApp uncovers security flaw, exposing spyware vulnerability

Details: WhatsApp told the BBC its security team first identified the flaw and shared details with rights groups, the Department of Justice and others this month. Phones became infected with sophisticated spyware via a missed in-app call.

The big picture: The company said the issue affected a "select number of users" and the fix was rolled out Friday, per the BBC.

"The attack has all the hallmarks of a private company reportedly that works with governments to deliver spyware that takes over the functions of mobile phone operating systems."

The other side: NSO Group said in a statement to media outlets the company was investigating the issue. "Under no circumstances would NSO be involved in the operating or identifying of targets of its technology, which is solely operated by intelligence and law enforcement agencies," it said.